UVC light kill bacteria

There’s a lot to learn about UVC disinfection. Whether you’re just getting started and wondering “What is UVC?” or you’re trying to sort out the difference between germs, pathogens, virus and bacteria, we’re here to help. We’ve assembled answers to many of the most frequently asked questions we hear. If you have a question that isn’t listed here, contact us and we’ll get the answer for you.

About UVC Light?

Q.

What is UV light?

A.

Ultraviolet light is part of the electromagnetic spectrum, the entire range of frequencies or wavelengths of electromagnetic radiation. Divided into seven distinct regions in order of decreasing wavelength and increasing energy and frequency, it extends from radio waves to gamma rays. Within this spectrum, ultraviolet light falls between x-rays and visible light, with wavelengths measuring between 100 and 400 nanometers (nm).

Q.

What is UVC light?

A.

Ultraviolet light is further classified into three primary groups based on wavelength: Ultraviolet A (UVA), Ultraviolet B (UVB) and Ultraviolet C (UVC). UVC light has a wavelength range of 100 – 280 nanometers (nm) and is widely accepted as the most effective light to eradicate germs. Accordingly, it is sometimes referred to as Ultraviolet Germicidal Irradiation (UVGI).

Q.

Is UVC light visible?

A.

Because the lower wavelength limit of human vision is around 400 nm, ultraviolet rays, including UVC, are invisible to the human eye.

Q.

Is UVC light safe?

A.

It depends upon how it’s used. With prolonged direct exposure UVC may be harmful to humans; most notably it effects the eyes and skin. It therefore should not be used in spaces when people are present. However, with proper safety precautions UVC can effectively and safely be used when spaces are unoccupied, making it an effective disinfecting agent for killing bacteria and deactivating viruses.

About UVC Disinfection

Q.

What are pathogens?

A.

A pathogen is an organism that can cause a disease upon entering the body. Pathogens can be transmitted in several ways depending on the type: skin contact, bodily fluids, airborne particles, and coming in contact with a surface touched by an infected person. The most common types of pathogens are viruses, bacteria and fungi. Examples of pathogens which present epidemic potential include novel coronavirus (SARS-CoV-2), West Nile Virus, Ebola, E. coli, Influenza and MERS.

Q.

Does UVC light destroy pathogens?

A.

Yes, the efficacy of UVC light in destroying pathogens has been documented in countless research studies and field applications, including government reports from the CDC, EPA and OSHA. While general effectiveness is dependent on the dosage (intensity and time of exposure), UVC is widely acknowledged as being able to eliminate up to 99.9% of harmful pathogens.

Q.

How does UVC disinfection work?

A.

UVC irradiation is a physical process that disrupts and damages the DNA and RNA of harmful organisms such as viruses, bacteria, and fungi. The destruction of the DNA and RNA leaves the organisms sterile, rendering them unable to function or reproduce. In simple terms, a sterile organism is in essence a dead organism. It cannot reproduce, spread, or cause disease.

Q.

How does UVC light prevent illness and diseases?

A.

Illnesses and diseases are caused by pathogens such as viruses and bacteria that grow and reproduce unchecked. Because exposure to UVC light prohibits organisms from reproducing, it reduces the number of pathogens to which people can become exposed.

About UVC Technology

Q.

Does UVC light penetrate traditional window glass?

A.

While it is not safe for humans to be in the same room where UVC light disinfection is underway, UVC light cannot penetrate the typical window glass found in offices, patient rooms, etc., so it’s safe to be on the other side of the glass.

Q.

Does UVC light penetrate surfaces?

A.

UVC light is an excellent surface disinfectant, but it only sanitizes the surfaces with which it comes into contact. It cannot disinfect surfaces in a shadowed area, and it doesn’t disinfect soiled surfaces or penetrate through surfaces to disinfect what’s underneath.

Q.

Is UVC light better than other disinfecting treatments?

A.

UVC light technology is a non-chemical, non-physical method of disinfection, making it easy and inexpensive to use. However, since it doesn’t disinfect shadowed areas, or penetrate surfaces, it’s best use as an adjunct treatment to other disinfection procedures..

Q.

Does UVC light impact materials in the surrounding environment?

A.

With long-term exposure, UVC light has the potential to damage plant life, reduce the lifespan of some plastics, and accelerate the fading of some colors and dyes.

Q.

What types of UVC light sources are used for disinfection?

A.

UVC light is delivered through lamps or LEDs. Lamp technology typically includes mercury lamps and pulsed xenon arc lamps. Lamp technology generally works faster, and is less expensive, than LED technology.

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Do UVC disinfection products need to be certified?

A.

To ensure complete safety it’s important all UVC products comply with UL Standards. Depending on product type, the typical standards include UL 153, 1598, or 1995.

About Safeology

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Who is Safeology?

A.

Safeology is a company dedicated to leveraging the science of light to create clean, pathogen-free spaces. Offering knowledge, products and advisory services, Safeology provides peace of mind, one germ-free, virus free space at a time.

Q.

What experience does Safeology have in UVC sterilization?

A.

Safeology is guided by a team dedicated to the mission of creating clean, safe spaces. From the founder trained in medicine, to the CEO trained in physics, to the company’s Scientific Advisory Board, Safeology brings the industry’s most knowledgeable experts together around the science of UVC disinfection.

Q.

How do I know if Safeology is a good fit for our needs?

A.

Most companies selling UVC products do just that—sell products. Safeology goes far beyond that to create a partnership with our clients. Together, we work towards a common goal of creating clean, safe spaces that ultimately engender trust and assurance between companies and their customers.

About Safeology Products

Q.

Which pathogens do Safeology products kill?

A.

Technically speaking, UVC light doesn’t kill pathogens—it inactivates them by destroying their DNA. But once inactivated, they are unable to reproduce, which renders them essentially killed. Safeology products use UVC technology that has been clinically proven to inactivate or eliminate up to 99.9% of viruses, bacteria and fungi.

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Where can Safeology products be used?

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Germs are virtually everywhere. And Safeology can work virtually anywhere. From airports to zoos, and everything in between – commercial spaces, corporate offices, hospitals, clinics, hotels, cruise ships, venues, arenas, stadiums, parks, grocery stores, restaurants, schools, dorms, day cares – Safeology products can eliminate pathogens and replace them with peace of mind.

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How do Safeology products work?

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Safeology products leverage the proven disinfecting properties of UVC light, combined with the latest in IOT technology and hardware safety redundancy, to quickly and safely sanitize surfaces. Using a proprietary and custom-designed mobile app and cloud-based management system, the user is able to safely program and start the disinfecting cycle from a remote location outside of the room being cleaned. When the cycle is complete, the app notifies the user.

Q.

How are Safeology products different from other UVC products?

A.

Safeology combines the latest in UVC science with innovative technology to ensure outstanding UVC cleaning performance while emphasizing user safety. Using statistical genome modeling, evidence-based experimentation, and computational dosage mapping combined with cloud-based software solutions and safety monitoring artificial intelligence, Safeology’s team of experts provide the most advanced UVC cleaning technologies available.

Q.

What does the Safeology app do?

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The app is designed to make it easy to program the disinfection cycle, operate the product, and gather and present statistics on product usage and remaining light lifecycle.

Q.

How long does Safeology disinfection take?

A.

Generally, UVC disinfection is a relatively quick process, often taking only minutes. However, the effectiveness of UVC disinfection is determined by the strength of the UVC light source, the duration of exposure, the distance from the light source to the surface being disinfected, and the specific type of pathogen being targeted. With so many factors to take into consideration, every space is different. Safeology uses science-based computational dosage modeling to determine the best way to disinfect your space.

Q.

Are Safeology products safe to use around people or animals?

A.

UVC disinfection products, including those from Safeology, must always be used according to the provided safety instructions. Because exposure to UVC light can be harmful to humans, Safeology UVC products are never used in spaces when occupied by humans or animals. Safeology uses the latest IOT technology combined with safety feature redundancy to prevent accidental UVC exposure and ensure products are always used in a safe manner.

Q.

How do Safeology products protect people from UVC exposure?

A.

Safeology products have multiple layers of protection integrated into the proprietary software to prevent accidental exposure. This includes in-person authentication, artificial intelligence (AI) safety monitoring, UVC startup audio warning, delay start, automatic motion shut-off, indicator count down and operational warning lights, auto-off if tipped, shatter-resistant lamps, no ozone, remote start and operation, and cloud-based restrictions and configuration.

Q.

Do I need special training to use Safeology products?

A.

Safeology has taken the guesswork out of UVC disinfection. Using the Safeology app, the initial set up is simple, and daily operations is easy. The Safeology customer service team is always available with remote access to validate setup and walk you through any questions. With any UVC light product, it’s important that users follow all safety and operating instructions.

About Pathogens

Q.

What’s the difference between pathogens, germs, viruses and bacteria?

A.

Pathogens and germs are catch-all terms that encompasses viruses, bacteria and other microscopic particles that can cause illness in humans. In modern science today, the term germ has been replaced with pathogen, but the two words are often used interchangeably

Q.

What are viruses?

A.

Viruses are made up of a piece of genetic code, such as DNA or RNA, protected by a coating of protein. Viruses invade host cells within the body, and use components of the host cell to replicate, producing more viruses. Examples of viral infections include Covid-19, Influenza, Common Cold, Measles, and Hepatitis.

Q.

What are bacteria?

A.

Bacteria are single-cell microorganisms that can live in just about any environment, including the body. Some bacteria are pathogenic and can cause infections. Some strains of bacteria have become resistant to antibiotics making them difficult to treat. Examples of bacterial infections include E. coli, C. diff, salmonella, strep throat and tuberculosis.

Q.

What are fungi?

A.

Of the millions of different fungi species, only a few hundred are known to cause sickness. Found just about anywhere, including on human skin, fungi can cause infection when they overgrow. Examples of fungal infections include yeast infections, ringworm, and athlete’s foot.

Q.

What is Covid-19?

A.

Covid-19 is a disease caused by the 2019 novel coronavirus, a new strain of coronavirus that had not been previously identified in humans. Coronaviruses (CoV) are a large family of viruses transmitting between animals and people that cause illness ranging from the common cold to more severe diseases such as Middle East respiratory syndrome (MERS-CoV) and severe acute respiratory syndrome (SARS-CoV).

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How does Covid-19 spread?

A.

The World Health Organization has determined that the novel coronavirus, the virus that causes Covid-19, is spread by contact with respiratory droplets. Those droplets are primarily spread from person to person through close contact of approximately six feet or less. They can also be spread by touching a surface or object that has the virus on it, and then touching the mouth, nose or eyes.

Q.

Can UVC light inactivate the Coronavirus?

A.

UVC light is a long-established disinfectant proven effective in inactivating viruses and has been used in hospitals and healthcare settings for years to sanitize rooms and equipment. Top experts believe UVC disinfection technologies will be effective against Coronavirus.

While we make every effort to ensure this information is accurate, we make no warranty or guarantee to the completeness or accuracy of this information. Safeology disclaims any liability to persons or property resulting from the use or reliance upon this information.